Add TypeScript definitions and non-throwing variants for validator #150

Job	Run time
build-and-test / build (24.X, jazzy)	7m 34s
build-and-test / build (24.X, humble)	8m 25s
build-and-test / build (24.X, kilted)	7m 20s
build-and-test / build (24.X, rolling)	2m 48s
build-and-test / build (24.X, rolling)	3m 55s
build-and-test / build (24.X, jazzy)	7m 34s
build-and-test / build (24.X, kilted)	7m 20s
build-and-test / build (24.X, humble)	8m 25s
	53m 21s

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